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Demco A-Frame Couplers
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Expert Answers about Demco

  • How To Check if Trailer Surge Brakes Are Working Properly On Tandem Axle Boat Trailer
  • Checking the brakes can be done in two ways. The easiest way is to raise one side of the trailer and spin the wheels while someone applies the surge brakes at the coupler. The better way would be to remove each of the wheels and brake drums and activate the brakes while making sure the wheel cylinders and brake assemblies are functioning properly. After this the first thing I would do is bleed the brakes using the trailers surge coupler to force the fluid from the brake lines and make...
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  • Recommended Sliding 5th Wheel Hitch For Short Bed Truck With Rails Installed
  • The rails in your 2005 Ford F-250 with 6-3/4 foot bed are standard rails compatible with most hitches. Because you have a short bed, you will need a sliding hitch. There are a few options for you, but I'll give you a recommendation for an auto-slide and a manual sliding hitch. The reason you will need a sliding hitch is because the clearance between your truck and trailer is limited due to the short box, so you want to make sure you have the ability to turn in tight spaces without having...
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  • Where Can VIN Be Found On Travel Trailer
  • The trailer A-Frame tongue is the first place to check. Look for a ID plate affixed to the frame near the coupler. If the ID plate isn't evident there, check the front storage compartment and look over any exposed frame members in that area. On some travel trailers, The ID plate is actually inside the trailer, inside a storage cabinet.
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  • Adapter Needed for 5th Wheel Hitch on a 2018 Chevy Silverado 3500 with the Factory Puck System
  • The Demco 5th Wheel Rail Adapter # DM6194 is an adapter rated for 21K that changes the factory puck system on a GMC or Chevy so that a 5th wheel hitch that installs on industry standard rails can be used for your towing setup. It will fit and work well with the puck system on your 2018 Chevy Silverado 3500 if it has a short bed.
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  • Compatibility of Demco Autoslide with 2018 Ram 2500 6.5 Foot Bed
  • The Demco 13K with a 22-1/2 inch slide # DM8550040 and # DM8550041, will not work for your application. It would cause issues with the tail gate. The confirmed fit for your truck is the Demco Hijacker Autoslide 5th Wheel Trailer Hitch w/ Slider - 18,000 lbs # DM8550034 or the 21K # DM8550035. Either will work well with the Rail adapter for Ram 5th Wheel Towing Prep Package # DM6099 or the Reese 5th Wheel Rail Adapter # RP30154. The weight of the hitch is 273 lbs for the 18K and...
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  • Pullrite Superglide or Demco Hijacker Comparison
  • The advantage the Pullrite Superglide would have over the Reese hitch # RP30083 is that you would never have to get out of your truck to activate the slider. We don't sell Pullrite hitches, but that would be a huge selling point for me to pick it over the Titan. However, I do have an additional option for you to consider that we DO offer that does automatically slide like the Pullrite. I really like the Demco Hijack part # DM8550034. This hitch would work similarly to the Pullrite,...
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  • Adapter Recommendation for 2017 GMC/Chevy Factory Fifth Wheel Rail Kit for Reese Hitch
  • There finally is a picture frame style adapter that fits your 2017 GMC Sierra 3500's factory rail kit. For that you would want the part # DM6194 which fits your truck and provides industry standard rails for the R16 Titan Hitch part # RP30867 to fit.
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  • Recommended 5th Wheel Hitch for 2018 Ford F-250 with 6-3/4 Foot Bed
  • Yes, the 2018 Ford F250 will work fine for the 5th wheel you mentioned. I recommend going with the factory rail kit to give you a clean bed when you are not towing. I also recommend the Demco Hijacker Autoslide 5th Wheel Hitch w/ Slider - Single Jaw - Ford Super Duty Prep Package - 18K # DM8550024 which will automatically slide to give you turning clearance for your short bed truck. This particular hitch it designed specifically for your truck. If you prefer a manual slider option,...
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  • Best Fifth Wheel Hitch Recommendation for 2017 Ford F-250 Short Bed with Rail Kit
  • The hitch I would recommend for your 2017 Ford F-250 short bed with the factory rail kit is the Demco Auto Slider part # DM8550038. This hitch has a 21k capacity, but what really makes it nice is that it attaches directly to your rail kit and automatically slides as you make tight turns instead of forcing you to get out of your truck every time you need to slide the hitch. It's not super lightweight but can easily be broken down into smaller sections to make removing it easier. I attached...
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  • Underbed Fifth Wheel Hitch and Rail Kit Recommendation for 2017 Ford F-250
  • We have the Demco underbed rail kits that fit your 2017 Ford F-250 like the part # DM8551009. With this kit installed you could use their 21k Demco hitch part # DM8550032 if you have a long bed or the auto slider part # DM8550022 if you have a short bed. The Demco hitches are USA made hitches that will work great for your application.
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  • 5th Wheel Hitch Recommendation For A 2018 Ford F-350 Short Bed With Prep Package
  • For your 2018 Ford F-350 short bed with the factory hitch prep package, the Demco Hijacker AutoSlide Hitch, Item # DM8550038, will work well for you. It is a confirmed fit for the 4 receiver puck system in your truck and will automatically slide back when you are in a tight turn to give the clearance you need. You will need locking plates to use a Trailair pin box like the Demco Hijacker Autoslide Locking Plate, Item # DM6095. With regards to maintenance, follow the guidelines in...
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  • What Brake Fluid Should be Used in Surge Brake Actuators
  • DOT 3 or DOT 4 brake fluid is recommended for Demco brake actuators like the # 8605001. You should never use DOT 5 as it will wear out seals very quickly.
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  • Is the Demco Base Rail Adapter # DM6140 Adjustable Vertically for Truck Bed Liners
  • The shaft portion of the Demco 5th Wheel Base Rails Adapter # DM6140 that you referenced is vertically adjustable so that you can match the height of the bed perfectly. This is helpful when the truck has a bed liner and the bed floor is slightly raised because of it. I attached a picture that shows how the adjustment is made.
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  • Pin Weight Capacity for Demco Nissan 5th Wheel Rail Adapter # DM6200
  • Maximum towing capacity for the Demco 5th Wheel Rail Adapter # DM6200 is 21k and since pin weight is typically 20 percent of total trailer weight that means this has a pin weight capacity of 4,200 lbs.
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  • Demco Hijacker Autoslide Compatibility with 2017 Ford F-250 Factory Rail System Holes/Pucks
  • For your Demco Hijacker Autoslide, if you have the above bed rail version like the 18K # DM8550034 or the 21K # DM8550035, then you will be able to use the adapter for your factory puck system. This adapter for your 2017 Ford F-250 is the Reese Elite Series Underbed Rail Adapter for Standard 5th Wheel Trailer Hitches - 20,000 lbs # RP30156. If you want the hitch that will fit without an adapter, the # DM8550038 or # DM8550024 would be the options. You may also want to consider...
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  • Recommended Adapter for Chevy and GMC Trucks with Factory Prep Package Rails and Pucks for 5th Wheel
  • We have two adapters available for short bed 2017 GM Trucks with the underbed rail kit. You can use the Curt # C16023 for Curt Sliding 5th Wheel hitches, or the Demco adapter # DM6194 for all other industry standard 5th wheel hitches with short beds. For the 8 foot beds, the only adapter available is the Demco # DM6206 which installs in the pucks to attach standard above bed rails with no drilling or welding required. These are the only adapters we have available for the Chevy/GMC...
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  • Locking Plate for Mor Ryde Pin Box to Make Trailer Demco Hijacker Autoslide Compatible
  • For the Demco Hijacker Autoslide to work properly with a Mor Ryde pin box, the Demco Hijacker Autoslide Locking Plate for MOR/ryde Pin Boxes # DM6025 is required. This plate will keep the pin box from moving independently of the hitch head that determines the correct pivot for turning clearance. I've attached the installation details to assist.
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  • 5th Wheel Trailer Hitch for a 2018 Ford F-250 with 6.5 Foot Bed and Grand Design 337 5th Wheel
  • The Demco HiJacker I recommend looking at is actually # DM8550022 with installation kit # DM8551009. The one you referenced, # DM8550040, is rated for 13,000 pounds only and is designed for trucks with super short beds and not the regular short bed like you have on your 2018 Ford F-250. Demco Hijacker # DM8550022 has 3 height settings, the lowest of which is 15-1/2 inches tall measured from the top of the bed corrugations to the top of the hitch head. Once the trailer is hooked up you...
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  • Comparing Demco Hijacker and Pullrite Superglide Fifth Wheel Hitch for 2017 Ram 2500
  • The things that the 18K Demco Hijacker # DM8550034 and the 18K SuperGlide have in common are that they both offer 14" of travel, they are both automatic sliding 5th wheel hitches, have 2-point pivoting hitch heads, are compatible with industry standard base rails, and they are both rated to tow up to an 18K trailer. Both 5th wheel hitches come with a 5-year limited warranty as well. Although they both have the single-jaw system to lock the king pin into place, the SuperGlide hugs it...
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  • Can Demco Glide Ride 5th Wheel Pin Box DM8250011 Be Used with Gooseneck Adapter
  • I reviewed the installation instructions for the Demco Glide Ride 5th Wheel Pin Box # DM8250011 and Demco indicates no restrictions about using this replacement pin box with hitch adapters. So you could use a gooseneck-to-5th-wheel adapter.
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  • Installation of Demco Frame Brackets for Demco Hitch # DM8550022 on 2016 Ram 2500 6.5 Foot Bed
  • On your 2016 Ram 2500, there are a couple notes in the instructions: On drivers front bracket unclip wires/hoses from inside of frame to allow bracket to fit flush to frame. Front brackets are mounted to the inside of the frame and the rear brackets are mounted to the outside of the frame. On the front brackets make sure you insert the spacer block between the frame and the bracket on the front hole location of the Demco Custom Brackets # DM8553016. Unfortunately the installation...
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  • Adapter for Reese 16K 5th Wheel Hitch to Fit Factory Puck System on a 2018 Chevy Silverado 3500
  • The Demco 5th Wheel Rail Adapter for Chevy/GMC OEM 5th Wheel Towing Prep Package # DM6194 is what you will want to use if your truck has a short bed. It provides standard base rails in place of the pucks on your 2018 Chevrolet Silverado 3500 enabling you to still use your Reese 16K 5th Wheel Hitch. Keep in mind that you will want a sliding hitch for trailer-to-cab clearance when making sharp turns. If you still wanted to use your 16K Reese Titan head you could simply replace the stationary...
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  • Recommendation for Installation of a Brake Mounting Flange on a Trailer Spindle and Axle
  • Welding a mounting flange, possible item # 4-35, is a very precise installation. The flanges need to be installed square and concentric to the hub and drum assembly and each other. If the flange is installed incorrectly rapid brake lining wear, improper braking, trailer dog legging, bearing failure, rapid tire wear and, worst of all, weakening of the axle can occur. Usually special jigs are used to install the flange. The jig will keep the flange square and concentric to the axle and...
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  • How To Bleed Trailer Brakes
  • You are in luck! We happen to have a video on the proper procedure for bleeding trailer brakes. I have attached the video below as well as outline the method here for you. First top off the master cylinder with appropriate fluid. Next you will want to pump the fluid from the master cylinder. You can do this by unbolting the plate that holds the lever in place and then use that lever to actuate the master cylinder and force the fluid through. On some units, you will have to manually activate...
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  • How Long Does it Take to Install Demco HiJacker 5th Wheel Hitch in 2015 Ford F-350 w/Prep Package
  • Since your 2015 Ford F-350 has the factory 5th wheel prep package the only installation of a 5th wheel hitch that is a direct fit is placing it in the pucks and turning the locking handles. So for example if you were using Demco HiJacker # DM8550024 you would place the hitch in the 4 pucks, make sure it is seated, and turn the handles to lock the hitch down into place. You will likely want to place the hitch in the truck in parts because the whole thing is over 200 pounds. I have...
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  • Footprint Dimensions of Demco Recon Fifth Wheel Hitch Adapter DM8550045
  • The foot print of the Demco Recon fifth wheel adapter # DM8550045 which is the base of the Recon Hitch part # DM6201 is 28” front to back and 30.5” left to right. Looks like you'd be an inch short as this would have 14 inches forward and rear of the hitch ball center it installs on.
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  • Troubleshooting Surge Brakes Locking up When in Reverse
  • With surge brakes, you have a brake actuator applying the needed pressure to the brakes but to be able to back up you will need to have a manual lockout or an electric lockout solenoid, like # T4748800, which will close when you shift the vehicle into reverse, allowing the trailer to be backed up. You may also need a solenoid cover like the Titan # T4835800183, depending on what brake actuator you currently have. Typically surge brakes are found on boat trailers, and commonly the...
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  • Recommendation on How To Easily Lift Demco Autoslider Into Bed of Truck
  • This is a great question. We actually addressed this with Demco and we came up with a solution. They started making the Demco 5th Wheel Lifting Bracket # DM6100 which can be used with an engine hoist, or winch, but we have also found a more mobile option in the MaxxTow Hydraulic Pickup Truck Crane for 2" Hitches - 1,000 lbs # MT70238. This allows you to easily load and unload a heavy hitch like the Demco Autoslider # DM8550034.
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  • Automatic Slider Fifth Wheel Hitch Recommendation for 2018 GMC Sierra 3500 with Rail Kit
  • We have a great auto slider fifth wheel hitch solution for your 2018 GMC Sierra 3500 short bed with the factory rail kit but it does require a rail kit adapter. For that we have the Demco Hijacker Autoslide part # DM8550034 which has an 18k capacity and slides back 14 inches as you make tight turns. The adapter you'd need then is the # DM6194 which fits the rail kit of your truck and provides the rails for the hitch. The rail kit fits tight to the truck so you wouldn't have any movement/noise...
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  • Fifth Wheel Hitch and Rail Kit Recommendation for 2011 Chevy Silverado 2500HD Short Bed
  • Since you have a short bed truck you are going to have to use a slider hitch to allow you the ability to make tight turns. Since getting out and activating a slider everytime you enter and leave a parking lot can be a bit of a hassle (especially in inclement weather), I would highly recommend a hitch that automatically slides as you make tight turns. For that I would recommend the Demco Hijacker Auto Slide part # DM8550034. This 18k hitch will work great for you and I would highly recommend...
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